From b2690b373437e5d32990b5e339d8c831ef836cf1 Mon Sep 17 00:00:00 2001
From: David Mellen <d.mellen@remind.de>
Date: Wed, 28 Aug 2024 09:14:49 +0200
Subject: [PATCH] fix: resolve type/null pointer exception in
 FilesCategoryProcessor

---
 Classes/DataProcessing/FilesCategoryProcessor.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Classes/DataProcessing/FilesCategoryProcessor.php b/Classes/DataProcessing/FilesCategoryProcessor.php
index 9c1061c..f1fe134 100644
--- a/Classes/DataProcessing/FilesCategoryProcessor.php
+++ b/Classes/DataProcessing/FilesCategoryProcessor.php
@@ -90,7 +90,11 @@ public function process(
      */
     private function getFileUid(array $file): int
     {
-        return $this->legacyReturn ? $file['properties']['uidLocal'] : $file['uidLocal'];
+        // uidLocal may be null while fileReferenceUid contains the actual file uid
+        // see: https://github.com/TYPO3-Headless/headless/pull/761
+        return $this->legacyReturn
+            ? $file['properties']['uidLocal'] ?? $file['properties']['fileReferenceUid']
+            : $file['uidLocal'] ?? $file['fileReferenceUid'];
     }
 
     /**